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zink: add more explicit fencing for transfer maps

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we're using our (primitive) buffer r/w tracking here to ensure that our
src buffers are synchronized before we do any kind of read operation on them

this is pretty slow in some cases, but it fixes a bunch of piglit tests

Reviewed-by: Erik Faye-Lun <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6924>
This commit is contained in:
Mike Blumenkrantz 2020-06-29 14:26:47 -04:00
parent e3ed624072
commit 8dfb941a4c
1 changed files with 5 additions and 1 deletions
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6
src/gallium/drivers/zink/zink_resource.c
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@ -529,6 +529,8 @@ zink_transfer_map(struct pipe_context *pctx,
} else {
assert(!res->optimial_tiling);
if (batch_uses >= ZINK_RESOURCE_ACCESS_WRITE)
zink_fence_wait(pctx);
VkResult result = vkMapMemory(screen->dev, res->mem, res->offset, res->size, 0, &ptr);
if (result != VK_SUCCESS)
return NULL;
@ -565,7 +567,9 @@ zink_transfer_unmap(struct pipe_context *pctx,
if (trans->base.usage & PIPE_MAP_WRITE) {
struct zink_context *ctx = zink_context(pctx);
uint32_t batch_uses = get_resource_usage(res);
if (batch_uses >= ZINK_RESOURCE_ACCESS_WRITE)
zink_fence_wait(pctx);
zink_transfer_copy_bufimage(ctx, res, staging_res, trans, true);
}